Thanks, I am actually pursuing to build custom connector to calculate the token alone, my c# skills just very low. I am just worried that I am over-complicating things.
There is an option to import a postman script. I imported a working postman script through the import method.
It created all the flows in the custom connectors, but uses variables setup as pm.environment variables
It misses a set of functions used to calculate the variables.
I guess I could try and translate this to c#, but this might deceive the object.
(function () {
pm.environment.set("variable_key", "variable_value");
pm.collectionVariables.get("variable_key");
pm.variables.get("variable_key");
pm.globals.get("variable_key");
pm.environment.get("variable_key");
var timestamp = getTime();
pm.environment.set("timestamp",timestamp);
const clientId = pm.environment.get("client_id");
const secret = pm.environment.get("secret");
var accessToken = "";
if(pm.environment.has("easy_access_token")){
accessToken = pm.environment.get("easy_access_token")
}
const httpMethod = pm.request.method.toUpperCase();
const query = pm.request.url.query;
const mode = pm.request.body.mode;
const headers = pm.request.headers;
// sha256
var signMap = stringToSign(query, mode, httpMethod, secret)
var urlStr = signMap["url"]
var signStr = signMap["signUrl"]
pm.request.url = pm.request.url.host + urlStr
var nonce = ""
if (headers.has("nonce")) {
var jsonHeaders = JSON.parse(JSON.stringify(headers))
jsonHeaders.forEach(function(item){
if (item.key == "nonce" && !item.disabled) {
nonce = headers.get("nonce")
}
})
}
var sign = calcSign(clientId, timestamp, nonce, signStr, secret);
pm.environment.set('easy_sign', sign);
})();
function getTime(){
var timestamp = new Date().getTime();
return timestamp;
}
// Token verification calculation
function calcSign(clientId,timestamp,nonce,signStr,secret){
var str = clientId +timestamp + nonce + signStr;
var hash = CryptoJS.HmacSHA256(str, secret);
var hashInBase64 = hash.toString();
var signUp = hashInBase64.toUpperCase();
return signUp;
}
// // Business verification calculation
// function calcSign(clientId,accessToken,timestamp,nonce,signStr,secret){
// var str = clientId + accessToken +timestamp + nonce + signStr;
// var hash = CryptoJS.HmacSHA256(str, secret);
// var hashInBase64 = hash.toString();
// var signUp = hashInBase64.toUpperCase();
// return signUp;
// }
// Generate signature string
function stringToSign(query, mode, method, secret){
var sha256 = "";
var url = "";
var headersStr = ""
const headers = pm.request.headers;
var map = {}
var arr = []
var bodyStr = ""
if(query){
toJsonObj(query, arr, map)
}
if (pm.request.body && mode) {
if (mode != "formdata" && mode != "urlencoded"){
bodyStr = replacePostmanParams(pm.request.body.toString())
} else if (mode == "formdata") {
// Traversing form key value pairs
toJsonObj(pm.request.body["formdata"], arr, map)
} else if (mode == "urlencoded") {
// Traversing form key value pairs
toJsonObj(pm.request.body["urlencoded"], arr, map)
}
}
sha256 = CryptoJS.SHA256(bodyStr)
arr = arr.sort()
arr.forEach(function(item){
url += item + "=" + map[item] + "&"
})
if (url.length > 0 ) {
url = url.substring(0, url.length-1)
url = "/" + pm.request.url.path.join("/") + "?" + url
} else {
url = "/" + pm.request.url.path.join("/")
}
if (headers.has("Signature-Headers") && headers.get("Signature-Headers")) {
var jsonHeaders = JSON.parse(JSON.stringify(headers))
var signHeaderStr = headers.get("Signature-Headers")
const signHeaderKeys = signHeaderStr.split(":")
signHeaderKeys.forEach(function(item){
var val = ""
if (isSelected(jsonHeaders,item) && headers.get(item)) {
val = headers.get(item)
}
headersStr += item + ":" + val + "\n"
})
}
var map = {}
url = replacePostmanUrl(url)
map["signUrl"] = method + "\n" + sha256 + "\n" + headersStr + "\n" + url
map["url"] = url
return map
}
function isSelected(jsonHeaders,key){
var result = true;
jsonHeaders.forEach(function(item){
if (item.key == key && item.disabled) {
result = false
}
})
return result
}
function replacePostmanParams(str){
while(str.indexOf("{{")!=-1&&str.indexOf("}}")!=-1){
const key = str.substring(str.indexOf("{{")+2,str.indexOf("}}"))
var value = pm.environment.get(key)
if(!value) value=""
str = str.replace("{{"+key+"}}", value)
}
return str
}
function replacePostmanUrl(str){
console.log("str:",str)
while(str.indexOf("{{")!=-1&&str.indexOf("}}")!=-1){
const key = str.substring(str.indexOf("{{")+2,str.indexOf("}}"))
var value = pm.environment.get(key)
if(!value) value=""
str = str.replace("{{"+key+"}}", value)
}
while(str.indexOf(":")!=-1){
const tempStr = str.substring(str.indexOf(":")+1,str.length);
var key = "";
if(tempStr.indexOf("/")!=-1){
key = tempStr.substring(0,tempStr.indexOf("/"))
}else if(tempStr.indexOf("?")!=-1){
key = tempStr.substring(0,tempStr.indexOf("?"))
}else {
key = tempStr.substring(0,tempStr.length)
}
var value = pm.request.url.variables.get(key)
if(!value) value=""
str = str.replace(":"+key, value)
}
return str
}
function toJsonObj(params, arr, map){
var jsonBodyStr = JSON.stringify(params)
var jsonBody = JSON.parse(jsonBodyStr)
jsonBody.forEach(function(item){
if(!item.disabled){
arr.push(item.key)
map[item.key] = item.value
}
})
}
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